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| 论文编号: |
137 |
| 论文题目: |
Soil characteristics and new formation model of loess on the Chinese Loess Plateau |
| 英文论文题目: |
Soil characteristics and new formation model of loess on the Chinese Loess Plateau |
| 第一作者: |
Zhao, JB |
| 英文第一作者: |
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| 联系作者: |
Zhao Jingbo |
| 英文联系作者: |
Zhao Jingbo |
| 外单位作者单位: |
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| 英文外单位作者单位: |
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| 发表年度: |
2017 |
| 卷: |
21 |
| 期: |
4 |
| 页码: |
607-616 |
| 摘要: |
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| 英文摘要: |
In this paper characteristics of loess are discussed from a pedological perspective. A new model of loess formation is presented, developed in different soil formation processes according to its pedogenic characteristics, including soil structure, organic matter content and CaCO3 content. Loess has all the characteristics of typical soils and all five soil-forming factors have important roles in loess formation. In this regard, loess is a type soil and the previous concept of loess actually comprises various kinds of palaeosols developed in cold and arid climatic conditions. The loess-forming process is, in fact, equivalent to a pedogenic process and loess layers with different characteristics represent different pedogenic processes indicative of different environments, such as desert-steppe, steppe or forest-steppe climatic conditions. In contrast to red-brown palaeosol layers, which develop in warm and wet climates, loesses-more accurately called 'loessial palaeosols'-are grey-yellow palaeosols and can be regarded as a reliable indicator of cold and arid climate. The model of loess formation suggests that aeolian dust transfers to grey-yellow palaeosols via pedogenesis and the characteristics of loess are mainly a result of climatic conditions and diagenesis processes after its sedimentation. This new model of loess formation also suggests that traditional pedological theory has its limitations when explaining soil formation processes. |
| 刊物名称: |
GEOSCIENCES JOURNAL |
| 英文刊物名称: |
GEOSCIENCES JOURNAL |
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| 英文论文全文: |
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| 全文链接: |
https://link.springer.com/article/10.1007%2Fs12303-016-0069-y |
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